Hi, i would really appreciate it if someone could tell me which wire is positive and which is negative for installing front speakers in my fiat punto. There is a black wire and like a yellowish wire.
I cannnot tell as i have no head unit, it is being fitted in a week so before the bloke comes i need to put in the speakers
I had taken out my old punto speakers before my car radio got stolen so i do not have them where i am staying at the mo




cheers for ur help

at a guess i would say black is neg- as it is on all the other wires through out the car

Dont matter aslong as they are in phase(the same each side,use black as neg for example).